870  
CDUS41 KPHI 102139  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
439 PM EST THU DEC 10 2020  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 10 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1872 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 51 2:53 PM 71 1966 46 5 58  
MINIMUM 36 7:28 AM 4 1876 32 4 40  
AVERAGE 44 39 5 49  
 
PRECIPITATION (IN)  
TODAY 0.00 1.45 1969 0.13 -0.13 0.17  
MONTH TO DATE 1.07 1.25 -0.18 2.26  
SINCE DEC 1 1.07 1.25 -0.18 2.26  
SINCE JAN 1 46.45 39.22 7.23 44.48  
 
SNOWFALL (IN)  
TODAY 0.0 4.3 1904 0.1 -0.1 0.0  
MONTH TO DATE T 0.7 -0.7 T  
SINCE DEC 1 T 0.7 -0.7 T  
SINCE JUL 1 T 1.0 -1.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 21 26 -5 16  
MONTH TO DATE 245 245 0 246  
SINCE DEC 1 245 245 0 246  
SINCE JUL 1 839 1061 -222 1045  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1521 1301 220 1610    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 7:00 AM  
LOWEST 46 1:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 65 1899  
1971  
MINIMUM TEMPERATURE (F) 31 8 1880  
 
SUNRISE AND SUNSET  
DECEMBER 10 2020......SUNRISE 7:12 AM EST SUNSET 4:36 PM EST  
DECEMBER 11 2020......SUNRISE 7:13 AM EST SUNSET 4:36 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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